Fatal error: Uncaught Error: Call to undefined function wc_nocache_headers() in /home/.sites/70/site4/web/wp-content/plugins/yith-woocommerce-wishlist/includes/class.yith-wcwl-frontend.php:235 Stack trace: #0 /home/.sites/70/site4/web/wp-includes/class-wp-hook.php(298): YITH_WCWL_Frontend->add_nocache_headers('') #1 /home/.sites/70/site4/web/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(Array, Array) #2 /home/.sites/70/site4/web/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #3 /home/.sites/70/site4/web/wp-includes/template-loader.php(12): do_action('template_redire...') #4 /home/.sites/70/site4/web/wp-blog-header.php(19): require_once('/home/.sites/70...') #5 /home/.sites/70/site4/web/index.php(17): require('/home/.sites/70...') #6 {main} thrown in /home/.sites/70/site4/web/wp-content/plugins/yith-woocommerce-wishlist/includes/class.yith-wcwl-frontend.php on line 235